Zinc neutralized sulfonated elastomeric polymer

ABSTRACT

{PG,1 This invention relates to an improved elastomeric composition of zinc neutralized sulfonated EPDM terpolymers which are preferentially plasticized with zinc stearate at a minimum critical concentration level of at least 8 parts per hundred by weight based on 100 parts by weight of the zinc neutralized EPDM terpolymer, wherein the compositions have an improved balance of physical and rheological properties. These compositions can be readily processed due to their superior rheological properties on conventional plastic fabrication equipment.



